An emergency water supply device for cooling towers in large thermal power plants

Abstract

The present invention relates to the technical field of cooling towers in thermal power plants, and discloses an emergency water replenishment device for cooling towers in large thermal power plants, comprising a ground platform, a cooling water tower, a water pump, a water replenishment tower and a water replenishment pipe are fixedly installed on the top of the ground platform in sequence from left to right, a water delivery pipe is passed through the side of the cooling water tower, a support rod is fixedly installed on one side of the top of the cooling water tower, a hollow column is fixedly installed on one end of the support rod, a floating adjustment rod is inserted in the hollow column, a pull rod is hinged on the upper side of the floating adjustment rod, one end of the pull rod is rotatably connected to a rotating shaft, both ends of the rotating shaft are rotatably connected to a U-shaped T-shaped slider, and the lower end of the U-shaped T-shaped slider is slidably connected to a T-shaped slide plate. The present invention solves the problem that when a water replenishment system fails, in order to ensure the normal operation of the unit and buy time for the repair of the water replenishment system, an emergency water supply source must be found.

Description

Technical Field

[0001] The invention relates to the technical field of cooling towers in thermal power plants, in particular to an emergency water replenishing device for cooling towers in large thermal power plants. Background Art

[0002] The circulating water system of a power plant is a key system of the power plant and an indispensable cooling system to maintain the normal operation of the power plant. Cooling towers are often used to cool down the power plant. The principle of cooling towers is to introduce cold water into the cooling tower and circulate it continuously to cool down the unit. When the water in the cooling tower becomes hot, it generates water vapor and is discharged to the outside through the top.

[0003] However, when the water supply system fails, in order to ensure the normal operation of the unit and buy time for the repair of the water supply system, it is necessary to find an emergency water supply source. To this end, we have launched an emergency water supply device for cooling towers in large thermal power plants. Summary of the invention

[0004] The purpose of the present invention is to provide an emergency water supply device for a cooling tower in a large thermal power plant, so as to solve the problem that when the water supply system fails, in order to ensure the normal operation of the unit and buy time for the repair of the water supply system, it is necessary to find an emergency water supply source.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: an emergency water replenishment device for a cooling tower in a large thermal power plant, comprising a ground platform, on the top of which a cooling water tower, a water pump, a water replenishment tower and a water replenishment pipe are fixedly installed in sequence from left to right, a water delivery pipe is penetrated through the side of the cooling water tower, a support rod is fixedly installed on one side of the top of the cooling water tower, a hollow column is fixedly installed on one end of the support rod, a floating adjustment rod is inserted in the hollow column, a pull rod is hinged on the upper end side of the floating adjustment rod, a rotating shaft is fixedly installed on one end of the pull rod, both ends of the rotating shaft are rotatably connected with a U-shaped T-shaped slider, the lower end of the U-shaped T-shaped slider is slidably connected with a T-shaped slide plate, a steel wire is fixedly connected to the surface of the rotating shaft, a square hole is opened at one end of the T-shaped slide plate, a sinking ball is fixedly connected to one end of the steel wire, and a switch is fixedly installed on the surface of the sinking ball.

[0006] Preferably, a vertical pipe is fixedly installed at the water outlet of the water pump, the vertical pipe is arranged at the top of the inner cavity of the cooling water tower, the output pipe of the water pump is fixed to the surface of the cooling water tower through a fixing column, and a drainage pipe runs through the bottom of the side of the water replenishment tower.

[0007] Preferably, a support frame is fixedly installed on the top of one end of the T-shaped slide plate, and a groove wheel is rotatably connected to the upper end of the support frame. The support frame is arranged between the T-shaped slide and the square hole, and the diameter of the groove wheel is larger than the distance between the T-shaped slide and the square hole.

[0008] Preferably, a floating ball is fixedly mounted on the bottom end of the floating adjustment rod, and the floating ball is hollow.

[0009] Preferably, both ends of the T-shaped slide plate are fixedly mounted on the sides of the water replenishment tower and the cooling water tower respectively.

[0010] Preferably, the water outlet end of the water supply pipe passes through the upper end of the other side of the water supply tower, and the water pipe of the vertical part of the water supply pipe is fixedly installed on the other side of the water supply tower.

[0011] Preferably, the drain pipe is connected to the water inlet end of the water pump.

[0012] Preferably, the groove of the groove wheel contacts the surface of the steel wire, and the steel wire passes through the square hole.

[0013] Preferably, there are two rotating shafts, which are rotatably connected to the U-shaped T-shaped slider in an upper and lower form, respectively, a steel wire is fixedly connected to the upper rotating shaft, and a pulling rod is fixedly connected to the lower rotating shaft.

[0014] The present invention provides an emergency water replenishment device for a cooling tower in a large thermal power plant. It has the following beneficial effects:

[0015] The present invention lowers the water level in the cooling water tower so that the floating adjustment rod inserted in the hollow column moves vertically downward. The floating adjustment rod sinks to apply a thrust to the pulling rod to slide the U-shaped T-shaped slider in the T-shaped slot of the T-shaped slot plate, so that the U-shaped T-shaped slider is away from the floating adjustment rod. The U-shaped T-shaped slider reduces the pulling force on the steel wire passing through the square hole. The steel wire moves downward due to the gravity of the falling ball through the rotation of the groove wheel. The switch is adjusted downward to the lowest point by the gravity of the falling ball, so that the switch touches the opening point to start the water pump to pump water. The water pump pumps water from the water replenishment tower to replenish the cooling water tower. The normal operation of the standby water replenishment tower is started through the physical structure, which solves the problem of finding an emergency water supply source in order to ensure the normal operation of the unit and buy time for the emergency repair of the water replenishment system when the water replenishment system fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side sectional view of the present invention;

[0017] Figure 2 A is an enlarged view of the present invention;

[0018] Figure 3 A top view of the T-shaped slide plate of the present invention;

[0019] Figure 4 A three-dimensional diagram of a T-shaped slide plate in the present invention;

[0020] Figure 5 It is a three-dimensional diagram of the U-shaped T-shaped slider in the present invention.

[0021] In the figure: 1. ground platform; 2. water pipe; 3. cooling water tower; 4. support rod; 5. vertical pipe; 6. hollow column; 7. floating adjustment rod; 8. pulling rod; 9. water pump; 10. switch; 11. sinking ball; 12. drainage pipe; 13. water supply tower; 14. water supply pipe; 15. T-shaped slide plate; 16. rotating shaft; 17. U-shaped T-shaped slider; 18. steel wire; 19. groove wheel; 20. support frame; 21. square hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1-5 As shown, the present invention provides a technical solution: an emergency water replenishment device for a cooling tower in a large thermal power plant, comprising a ground platform 1, a cooling water tower 3, a water pump 9, a water replenishment tower 13 and a water replenishment pipe 14 are fixedly installed on the top of the ground platform 1 from left to right, a water delivery pipe 2 is penetrated through the side of the cooling water tower 3, a support rod 4 is fixedly installed on one side of the top of the cooling water tower 3, a hollow column 6 is fixedly installed on one end of the support rod 4, a floating adjustment rod 7 is inserted in the hollow column 6, a pull rod 8 is hinged on the upper end side of the floating adjustment rod 7, a rotating shaft 16 is fixedly installed on one end of the pulling rod 8, a U-shaped T-shaped slider 17 is rotatably connected to both ends of the rotating shaft 16, a T-shaped slide plate 15 is slidably connected to the lower end of the U-shaped T-shaped slider 17, a steel wire 18 is fixedly connected to the surface of the rotating shaft 16, a square hole 21 is opened at one end of the T-shaped slide plate 15, a sinking ball 11 is fixedly connected to one end of the steel wire 18, and a switch 10 is fixedly installed on the surface of the sinking ball 11.

[0024] A vertical pipe 5 is fixedly installed at the water outlet end of the water pump 9, and the vertical pipe 5 is arranged at the top of the inner cavity of the cooling water tower 3. The output pipe of the water pump 9 is fixed to the surface of the cooling water tower 3 through a fixed column. A drainage pipe 12 is penetrated at the bottom of the side of the water replenishment tower 13. A vertical pipe 5 is fixedly installed at the water outlet end of the water pump 9, and the vertical pipe 5 is arranged at the top of the inner cavity of the cooling water tower 3. The output pipe of the water pump 9 is fixed to the surface of the cooling water tower 3 through a fixed column. A drainage pipe 12 is penetrated at the bottom of the side of the water replenishment tower 13. A support frame 20 is fixedly installed at the top of one end of the T-type slide plate 15. The upper end of the support frame 20 is rotatably connected with a groove wheel 19. The support frame 20 is arranged between the T-type slide and the square hole 21, and the diameter of the groove wheel 19 is larger than that of the T-type slide. The distance between the groove and the square hole 21, a floating ball is fixedly installed at the bottom end of the floating adjustment rod 7, and the floating ball is hollow, the two ends of the T-shaped slide plate 15 are respectively fixedly installed on the sides of the water supply tower 13 and the cooling water tower 3, the water outlet end of the water supply pipe 14 passes through the upper end of the other side of the water supply tower 13, and the vertical part of the water supply pipe 14 is fixedly installed on the other side of the water supply tower 13, the drain pipe 12 is connected to the water inlet end of the water pump 9, the groove of the groove wheel 19 contacts the surface of the steel wire 18, and the steel wire 18 passes through the square hole 21, the number of the rotating shaft 16 is two, and they are rotatably connected to the U-shaped T-shaped slider 17 in an upper and lower form, the steel wire 18 is fixedly connected to the upper rotating shaft 16, and the pulling rod 8 is fixedly connected to the lower rotating shaft 16.

[0025] Through the above technical scheme, the emergency water replenishment device for the cooling tower of a large thermal power plant lowers the water level in the cooling water tower 3, so that the floating adjustment rod 7 inserted in the hollow column 6 moves vertically downward, and the floating adjustment rod 7 sinks to apply thrust to the pulling rod 8 to slide the U-shaped T-shaped slider 17 in the T-shaped slide groove of the T-shaped slide groove plate 15, so that the U-shaped T-shaped slider 17 is away from the floating adjustment rod 7, and the U-shaped T-shaped slider 17 reduces the pulling force on the steel wire 18 passing through the square hole 21. The steel wire 18 moves downward due to the gravity of the falling ball 11 through the rotation of the groove wheel 19, and the switch 10 is adjusted downward to the lowest point by the gravity of the falling ball, so that the switch 10 touches the opening point to start the water pump 9 to pump water, and the water pump 9 pumps the water in the water replenishment tower 13 out of the cooling water tower 3 to replenish the cooling water tower 3, and the normal operation of the standby water replenishment tower 13 is started through the physical structure, which solves the problem that when the water replenishment system fails, in order to ensure the normal operation of the unit and buy time for the repair of the water replenishment system, an emergency water supply source must be found.

[0026] During use, when a water replenishment system failure occurs and emergency repairs are required, the control structure of the water pump 9 is energized, and the water level in the cooling water tower 3 on the local platform 1 continues to drop, causing the floating adjustment rod 7 inserted in the hollow column 6 at one end of the support rod 4 to move vertically downward. The floating adjustment rod 7 sinks and applies a thrust to the pulling rod 8. The pulling rod 8 slides the U-shaped T-shaped slider 17 in the T-shaped slide groove of the T-shaped slide groove plate 15 through the rotating shaft 16, so that the U-shaped T-shaped slider 17 is away from the floating adjustment rod 7. The U-shaped T-shaped slider 17 reduces the tension on the steel wire 18 passing through the square hole 21. The steel wire 18 moves downward due to the gravity of the falling ball 11 through the rotation of the groove wheel 19 on the support frame 20, and the switch 10 is adjusted downward to the lowest point by the gravity of the falling ball, so that the switch 10 touches the opening point to turn on. The water pump 9 pumps water, and the water pump 9 pumps out the water in the water replenishment tower 13 through the drain pipe 12, and then replenishes the cooling water tower 3 with water through the vertical pipe 5, thereby ensuring the normal output of the water pipe 2. As the water in the cooling water tower 3 rises, the floating regulating rod 7 continues to rise, and the U-shaped T-shaped slider 17 is moved closer to the floating regulating rod 7 by pulling the rod 8. The U-shaped T-shaped slider 17 pulls the sinking ball 11 upward through the steel wire 18, and the sinking ball 11 moves the switch 10 toward the closing contact point of the water pump 9. After the switch 10 contacts the closing contact point of the water pump 9, the water pump 9 stops pumping water. After emergency repair, the control structure power supply of the water pump 9 is disconnected, so that the physical structure cannot start the water pump 9 when the water level in the cooling water tower 3 is high, and then the water replenishment tower 13 is filled with water through the water replenishment pipe 14 for next use.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An emergency water replenishment device for a cooling tower of a large thermal power plant, comprising a ground platform (1), characterized in that: A cooling water tower (3), a water pump (9), a water supply tower (13) and a water supply pipe (14) are fixedly installed on the top of the platform (1) in order from left to right. A water supply pipe (2) runs through the side of the cooling water tower (3). A support rod (4) is fixedly installed on one side of the top of the cooling water tower (3). A hollow column (6) is fixedly installed on one end of the support rod (4). A floating adjustment rod (7) is inserted in the hollow column (6). A pull rod (8) is hingedly connected to the upper side of the floating adjustment rod (7). A rotating shaft (16) is fixedly installed on one end of the pull rod (8). A U-shaped T-shaped slider (17) is rotatably connected to both ends of the rotating shaft (16). The lower end of the U-shaped T-shaped slider (17) is slidably connected to a T-shaped slide plate ( 15), a steel wire (18) is fixedly connected to the surface of the rotating shaft (16), a square hole (21) is opened at one end of the T-shaped slide plate (15), a sinking ball (11) is fixedly connected to one end of the steel wire (18), a switch (10) is fixedly installed on the surface of the sinking ball (11), the switch (10) is adjusted downward to the lowest point by the gravity of the sinking ball (11), so that the switch (10) touches the opening point to start the water pump (9) to pump water, the two ends of the T-shaped slide plate (15) are respectively fixedly installed on the side of the water supply tower (13) and the cooling water tower (3), the water outlet end of the water supply pipe (14) passes through the upper end of the other side of the water supply tower (13), and the vertical part of the water supply pipe (14) is fixedly installed on the other side of the water supply tower (13).

2. According to claim 1, a large thermal power plant cooling tower emergency water replenishment device is characterized in that: A vertical pipe (5) is fixedly mounted on the water outlet end of the water pump (9), and the vertical pipe (5) is arranged at the top of the inner cavity of the cooling water tower (3). The output pipe of the water pump (9) is fixed to the surface of the cooling water tower (3) via a fixing column, and a drainage pipe (12) runs through the bottom of the side of the water replenishment tower (13).

3. The emergency water replenishment device for cooling tower of a large thermal power plant according to claim 1 is characterized in that: A support frame (20) is fixedly mounted on the top of one end of the T-shaped slide plate (15), and a groove wheel (19) is rotatably connected to the upper end of the support frame (20). The support frame (20) is arranged between the T-shaped slide and the square hole (21), and the diameter of the groove wheel (19) is greater than the distance between the T-shaped slide and the square hole (21).

4. The emergency water replenishment device for cooling tower of a large thermal power plant according to claim 1, characterized in that: A floating ball is fixedly mounted on the bottom end of the floating adjustment rod (7), and the floating ball is hollow.

5. The emergency water replenishment device for cooling tower of a large thermal power plant according to claim 2, characterized in that: The drainage pipe (12) is connected to the water inlet end of the water pump (9).

6. The emergency water replenishment device for cooling tower of a large thermal power plant according to claim 3, characterized in that: The groove of the groove wheel (19) contacts the surface of the steel wire (18), and the steel wire (18) passes through the square hole (21).

7. The emergency water replenishment device for cooling tower of a large thermal power plant according to claim 1, characterized in that: There are two rotating shafts (16), which are rotatably connected to the U-shaped T-shaped slider (17) in an upper and lower form, respectively; the steel wire (18) is fixedly connected to the upper rotating shaft (16), and the pulling rod (8) is fixedly connected to the lower rotating shaft (16).

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